2220122220012 has 36 divisors (see below), whose sum is σ = 5855974553520. Its totient is φ = 707865055392.

The previous prime is 2220122219993. The next prime is 2220122220049. The reversal of 2220122220012 is 2100222210222.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2220122220012² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1340652687 + ... + 1340654342.

It is an arithmetic number, because the mean of its divisors is an integer number (162665959820).

Almost surely, 2^{2220122220012} is an apocalyptic number.

It is an amenable number.

2220122220012 is an abundant number, since it is smaller than the sum of its proper divisors (3635852333508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220122220012 is a wasteful number, since it uses less digits than its factorization.

2220122220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681307062 (or 2681307057 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2220122220012 its reverse (2100222210222), we get a palindrome (4320344430234).

The spelling of 2220122220012 in words is "two trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty thousand, twelve".